If you’re doing a drive swap this step in not necessary.

Drive swap completed within 20 minutes and I’m ecstatic, the right tools can make a world of difference. Great guide! Thanks for this. 5 stars!!!!!

In taking this area apart, I think I may have damaged the hose leading to the check valve, is there a way to get that hose replaced?

I think the first step before disassembly should be to unplug the machine FOR SAFETY!

One thing that was not mentioned is if you are upgrading to a larger capacity hard drive from the original, you can clone the original hard drive (if it hasn't crashed) to the new one then do the swap. You can then use the Universal Drive Adapter to format the smaller drive and use it as you wish.

If you still have the DVI to VGA adapter that came with the computer plug it in to the plug and screw it tight, that way you will not put one of the screws into the holes.